bilinear form

例句：

1. 1. The bilinear form of theequation is a key to solving it.
   方程的双线性形式是解决它的关键。
2. 2. Inmathematics, the bilinear formis used to describe the shape of aplane.
   在数学中，双线性形式用于描述平面的形状。
3. 3. The bilinear form isalso used in computer graphics to calculate theperspective projection of objects.
   双线性形式也在计算机图形学中用于计算物体的透视投影。